Writing-machine.



No. 888,438. PATENTED MAY 19, 1908, E. B. HESS @L J. M. STOUGHTON.

WRITING MACHINE.

APPLICATION FILED uAR.z9.19n5.

4 SHEETS-*SHEET 1.

@Q Qi@ C@ No. 888,438. PATENTED MAY l9, 1908. E. B. HESS l: J. M. STOUGHTON.

`WRI'IING MACHINE.

APPLICATION FILEL HAR.29.1905.

' 4 SHEETS-SHEET 2.

PATENTED MAY-19, 1908. E. B. HESS @L J. M. STOUGHTON.

WRITING MACHINE.

APPLIGMXON FILED MAR. 29. 190V.

4 SHEETS*SHBET 3.

No. 888,438. PA'I'ENTED MAY I9, 1908.

E. B. HESS In J. M. STOUGHTON.

WRITING MACHINE.

APPLICATION FILED MAR.29.1905.

i SHEETS-SHEET 4.

Fgaf u... prf g I I I iwi" IAIIIHHHHI /MHHWM y|s1| r -.1 I m 3:/ /4 J ulmumwam.f

UNrrEn srArEs PATENT oEEro'E.

EDWARD f ness, or NEW` Yoeri, AND`JosEPH u. s'roUGHroN, .OF YoNKEits, NEW YORK. Assis-Nose To ROYAL TYPEWRITEECOMPANY, or HOBOKEN, NEW JERSEY, A CORPOu RArroN OE NEW JERSEY. y

No. 888,4es.

Specification of Iietters Patent.

Application led March'29y1905. Serial No. 252,722.

vWm'rmG-MACHINE.

Patented Mey 19, 190s.

' he object of this invention is to protect the working mechanism from dust and dirt either deposited from the atmosphere or resulting from the use of en eraser upon the sheet 1n the machine: and s further object is to reduce the noises Oi impsct and vibration.

The invention is particularly applicable t o a front-stroke machine hr1-'ving a vertically disposed type ber segment und type 1e -bsrs which lie with their heads toward t front of the machine.

The subject metter cleinied is hereinafter specilied. l n.

In' the accompanying drawing Figure l is a top plan view: Fig. 2, a vertical longitudinal section. Fig. 3, s bottoni plan View: Fig. 4, e sectional detail view of part .of the bottom closure plate of the freine: Fig. 5, a perspective view of one of the two c osure plates disposed between the ribbon boxes and the carriage respectively on o posite sides of the printing point. Fig. G, a bottom plan view of the ribbon box or cover: Fig. 7 a front elevation thereof: Fig. S, e rear elevation: Fig. Q, e section on the line 9, 9: and F` 10, e detail view showing the laten and 'Virt reiiecting surface of the r1 bon box iiiiich directs reflected rays of light upon the paper on the platen and particularly to the printill point thereon.

The eine of the machine coin rises o rectsngulanicesting having vertical y disposed front and-end pistes or wells and side plates or wallso. The open bottom of this casting is completely' closed by e bottom plate b se'- cured thereto by e, series of screws c'. This plete maybe formed of sheet metal, and may have struck-up depressions in its outer face,

es indicsted std( Such' depressions may receive rubber supporting buttons e, Flg. 4, which may be permanently secured m position bv screws passing through the opening d in the bottoms of the depressions. It is, however, preferred that rubber buttons or Cushions be omitted end that the entire botthe upper tom face of the bottom closure plete be covered with a relatively 'thick sheet Vof comperatively soft rubber or felt f, Figs-2 and 3., At the extreme front of the machine, the top is closed against admission of dustby a plete 6 g secured to the casting and by the stepped cover hl for the banks of finger iecesfi having stems 'i' that extend throng the stepped cover dplete and through e guide plate i2 locate beneath it. d

A cover pltey' through which the stems of ine or benk of keys pass, extends rearwardly, and its rear edge has thecontour indicated by dotted line j in Fig. 1,-'-the curve of the edge neer each side of this late 7 being made to conform to the ribbon bo bin not shown. y l

They ribbon box comprises two circuler housings k, 7c, that inclose the ribbon bob-v bins at-each side, and are connected by an 7 intermediate plate which .is of the shepe shown in Figs. 7, 8 and 9, having, preferably, an inclined or beveled to fece m intermediate the ribbon boxes. T is structure'is rovided with slots m for traverse of the rib on. 8 The front Well of the part m may be, and l preferably is, straight and tangential to the circuler housings of the ribbon bobbins, whereas the rear well is of' a height equal to the height of the housings and is located in 8 front of the rear wells thereof, as seen in Fig.

'1. This ribbon box composed ot' the parts k, m, with the front and rear walls of the letter, covers the opening that would otherwise exist in roer ofthe upper benk of keys. The 9 rear well of m, (Fig. 8), is cut eway'at the lcenter, the upper edge of the opening so formed being lower at the center than at either end, the pur ose being to efford a clearance et the center or the, center type bar, and at the ends, for 'the respective end ty e bers and beyond such necessary opening or clearance of the type bars,l the front of the ribbon box is completely closed except for the slots m in which the ribbon traverses. In rear of 1 each housing k, the top of the machine is kclosed by e plate shown 1nl Fig. 5. vThe front y "edge 'of this plete has a, segmental recess whose edge asses under the circular edge of the ribbonL ox. Its rear edge o, which 'is 1 straight, extends as fenrearwerdlyas the notches or recesses p in the sides of the cest.- ing, .which are to be occupied by thel bottom reil of the carriage. The vinner edge of'tlie plete is curved as et o', the curve conforming 1 rear, inner, upwardly-curved edge is located immediately under the type-ber guide g, in rear of which is the ribbon vibrator Q1, the

' line g2 indicating the ribbon. Just et the type-ber bearings in the segment s.

,es widely separated reer oi the typeber guide, this plete is bent downwardly, or formed with s. vertical well' o3, and the angle between the upwardly extending curved part o, and the vertical Well o2 is lattened, as shown at 0*, to afford eclearance for the ribbon. Extending between tbe sides of the castings end iminedietely below the front edge o of these cover plates, is e vertical cross-plete yr that forms the iront Well of the opening at p, in' which the bese rsil ofthe carriage lies, endserves to deflect the dirt and grit of erasure-from the Theribbon vibrator q1 extends upwardly between the beck of the segment s, Yend the Well r pertitionr. l

So fer es mere dirt or Grit of erasure is concerned, the dust guard composed of two.

' lautes or sections such es shown in Fig. 5 iorrns en effective protection to the type ber pivots. Since the res-r edges of the dust girer sections pass beyond the reer ieee of the type ber segment there is prsetioelly no possibility of the dirt of erasure felling into the bearings of the bers from the reer of the segment even were those bearings exposed from the reer side es is the cese in sorne forms of segments. Unless en erasure be made et the printing point, or, in other Words immo dietely over the smell opening between the contiguous edges of the two dust guard plates through which opening the ribbon vibrator passes, there isv practically no possibility of the dirt of erasure reschingf'` the type bers or their pivots. Owing to the location of the ribbon vibrator end type ber guide and. beeeuse of their close proximity to the printingp point it is not the custom of open eters to Ineke erssures directly et the printingv point. The universel Custom is to ineke the erasure either one side or the other. Any dirt oi erasure would, therefore, tell upon the dust guard plates and since their in-v ner edges are curved upwerdly, dirt of eresure felling thereon may be brushed sway. For effective protection it is not necessary that the space between the contiguous edges of these two dust sheds should be mede so smell esto merely permit the passage of the yerioustype bers. They may,4 in feet, be toward the iront as the designer of the machine desires without inipeiring their eiiiciency.

In roer of the depression' p, p, there ereseems other neoossery upwardly extending parts. At euch outer lower edge of each ribbon box housing is it lim'nxfnrdly extendingr lip or i linger lt" that has more or less resiliency ond which pessthroug'h slots lf'l in the cowl' plates n, o, thereby serving' not only o guido the ribbon box into proper position but to frictionelly retain it.

As shown in Fig. l() the rear will 'mi of the part m on both sides ol! the central' type ber -f opening therein, or the rear well of the ribbon boxes, may be inclined, so that rays of light indicated by dotted lines will be reilected, es shown by dotted lines fg, to the front fece of the platen, incressing the illumination thereof. This inclined'portion may extend between the dotted lines at y Fig. 8.

' No claim es our invent-ion:

1. in e front stroke Writingr machine, e. dust end dirt excluding nieniber located between the pieten end ribbon boxes end conirising opposite perte seperated by e speee tor pesssge of the type bers te the printing point, the inner Vedges of such perte being respectively curved, es ol and turned lip-- werdly to conform to the paths of the end type bers, and being esc-h also formed with e, yerticsl Well oa end heyi the edge or single formed by the vertical We l flattened st o4 for passage of the ribbon. L

2. in e front stroke Writing 'rneeh'iie, e dust and dirt excluding member loesteii be-I tween. the pieten and ribbon boxes end ,cornrising opposite perts separated by e spese iorpessege of the type bers to the printing point, the inner edges of such parte being rsspectively curved, es et 0"- end turned up Wardly to cohiorm to the eths of the end type bers, end being each e so formed with e. vertical Well o3 end benino the edge or angle formed by the vertical Well flattened as et o* for `pessege of the ribbon, in combination with ribbon 4bobbin housingseonnected by en intervening srt m serving to olose the top oi the frame ietween the housings and in front oi the key board plates, said psrt m having its resi' well cut ewa-y for passage of the type' bars to the printing point.

3. ln e iront stroke Writing xnschine s ribbon bobbin be); located in front oi the loten endcomprising housings for the bob ins rigidly and permanently connected by en intervening part constituting e partiel cover to partly int-.lose the top of the Inechine.

4. ln e front stroke writing machine e ribbon bobbin box comprising housings for the bobbins rigidly ond perinsnently connected by :in intervening mrt constituting e. partial Cover to partly inclose the top of `the machine, and con'iposed of e top, iront end reer wells, the rear well being cut away oentrzilly for passage .of the type bers to the printingr point.

5. ln e front stroke writing machine e 888,438 I l n ribbon bobbin box com rising'housings for the bobbins'rigidly an -permanently con- I nected by an intervening art constituting 'ja partial cover to partly inc ose the topof the I machine, and composed of a top, front and .rear walls,:the rear wellbeing cut away cen .trallylforgpassage ofv the type bars to the printingi-p'oint, and inclined rearwardly and dow`nwa1`f l0 angular-l ,.-disposedf surfaces toreiiect light rays tditfepvrmtingpomt on the platen. 6, In-a' ont stroke Writing machine, a rectangular` frameajdust excluding ,and sound deadeningf' closure comprising a plate islentirely #closing the `fbottom, and closure means for the to composed of the key board plates,ria ribbon obbin boxihaving housings connected an intermediate part; and, interposed between the box and platen, plates 2,0" separated longitudinally of the machine by a f space forpassage 'of the type bars to the printing point.

.7. 'In afront lstrike writing machine, a y platen, ai vertically arranged type bar se fm'entin which the type bars, that normaly 'l lie-inl substantial parallel lines with their heads towardl the front, are pivoted, a dust lshed composed, of two sections arranged re- .spectively 'with their inner ends closely adfjnlqent the printing point and extending lat- "'fol'allyA therefrom with their front edges in- ."elined outw'ai'cll whereby the type bar segmentand ty e. var bearings therein are protected from irt of erasure occurring at either ne side ofthe rinting point.

j, In av ont strike machine, type bars normally lying toward the front of the machine in substantially parallel lines, .a segxnent in which they are pivoted and adust ioehed arranged above the segment and com- .'posed of tw'o sections whose inner ends are 'closely adjacent the rinting point and which .extend laterally an forwardlybeing more ywidelr separated at their'front ends.

119.jn. a' lfront strike writing machine, a x dust shed arranged above the chord of the 'are inwhich the type bars are pivoted and 11." A front strike writing machinecomu` prising `a platen,a centrally disposed ribbon vibrator and type bar guide, a dust shed composed of two sections whose narrow inner 66 ends are contiguous to the guide and which' adjacent the housings to form l extend laterall with their front edges inclined'outwardiy, combined with a type bar segment. located below said dust guard and provided with bearings for the type bars.

12.1In a front strike writing machine, a 70 platen, a vertically disposed sup )ort located elow the platen provided with earings arranged in an are ior the type bar, type bars pivoted in said bearings and norma ly lying substantially parallel with their heads toward the front, and a dust shed arranged above the segment and extending on eit er side of the printing point. A

13. In a front strike writing machine, a laten, a transversely arranged segment be- 50 ow the'platen and substantially in line below the printing line thereon, type bars pivoted therein in an arc and a dust shed located above a chord passing through the pivots of the end type bars and composed of -two sec-A g5. tions whose inner ends are arranged closely adjacent the printing point and which ex-` tend laterally and forwardly with their front edges inclined outwardly.

14. In a front strike machine, ty e bars'zgo normally lying toward the front of t e Inachine in substantially parallel lines, a segment in which they are pivoted and a dust shed arrangedabove the segment and composed of two sectionswhose inner ends are closely adjacent the printing point, whose rear edge extends over the segment 'and which extend laterally and forwardly being more widely separated at their front ends.

15. In a front strike writing machine, a vertically disposed segment arranged below the platen, type bars pivoted therein and normally lying toward the front of the machine, and a dust shed extending at the rear over the segment, and from adjacent the printing point laterally and forward with a space between its front portions for passage of the type-bars to the printing point.

16. In a front strike writing machine, a vertically disposed segment arranged below 11o the platen, type bars pivoted therein. and

normally lying toward the front of the machine, a ribbon guide. located opposite the printing point on the platen, and a dust shed com osed .of two sections arranged respec- 115 tive y on oppositesides of the ribbon guide above the segment and having their inner edges toward the rear closely adjacent the ribbon ouide and extending laterally and forwardljyr 17. Ina front strike writing machine, a vertically disposed Asegment arranged below the platen, type bars pivoted therein and normally lying toward the front ofthe machine, a ribbon guide located opposite the 125 printing point on the platen, and a dust shed comlposed of two sections arranged respective y on opposite sides of the r1bbon guide above the segment and having their inner portions turned or inclined upwardly' with 130 mei? inne? e es tov/em me Fear cosey edj esem the rib on guide and extending laine?- ely and forwardly.

18. n a front strike Wrsving machine. 'e vertcaliy disposed segment emnged beow the platen, type bars pvotee therein and normely lying towad'the front of he mechine, e. ribbon guide located opposite @he printing point on the plafen, and e dust shed Composed of two sections arranged Tespectvely en opposite sides of the ribben guide above the segment and having their inner portions turned or inclined upwmdy with their inner edges toward the real closely ad- En teefomony whe/Teef, we have eubsmbed our enee. EEDWRD E. HES-S.

M. S'GQ@ sees "01 Hees: F. PORTER, F. BROWNMG.

over @he segment.

L. F. BROWMNG. 

